2021届东莞市大朗中学高三英语期末试题及答案.pdf
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1、2021 届东莞市大朗中学高三英语期末试题及答案 第一部分 阅读(共两节,满分 40 分)第一节(共 15 小题;每小题 2 分,满分 30 分)阅读下列短文,从每题所给的 A、B、C、D 四个选项中选出最佳选项 A TheBest Placeto Camp in Each State Washington-SecondBeach,Olympic National Park Campers put up their tents right on the sand of thisPacific Northwestbeach.Make a campfire,photograph sunset ov
2、er the sea and try to absorb this charming spot with your entire being.Alaska-Bartlett Cove Campground,Glacier(冰川)Bay National Park In a state full of natural riches,Glacier Bayis a wonder,home to high peaks,whales,700 miles of coastline,and light blue glaciers that flow directly into the sea.Set wi
3、thin temperate rainforest along Bartlett Cove,the parks only campground is impressively green and an easy jumping-off point for boat tours.Arizona-Havasupai Campground,Havasupai Reservation Getting to Havasupai is a challenge.Permits are snatched(剥夺)up almost instantly,and even if you get one its a
4、10-mile hike from the border to reach this rural campground that hugs Havasu Creek.Make the journey,however,and youre rewarded with a series of great waterfalls and natural pools.Arkansas-BuffaloNationalRiver Americas first national river travels 135 miles through the Ozark Mountains,winding its way
5、 over rapids,forming peaceful pools and passing rocky cliffs topped by green forest.Plan a float trip and absorb the scenery at a leisurely pace,pausing for hikes to visitLostValleys caves or the 200-foot waterfalls.1.Which state may attract people preferring glaciers?A.Alaska.B.Washington.C.Arizona
6、.D.Arkansas.2.What makesArizonaa popular camp choice among tourists?A.The blue glaciers and green rainforests.B.The winding national river and cliffs.C.The soaring peaks and long coastline.D.The beautiful waterfalls and pools.3.What can you do when camping inArkansas?A.Take a long trip on foot.B.Vis
7、it caves and waterfalls.C.Put up a well-equipped tent.D.Enjoy a view of sunset.B If youve ever had a dog,you know just howdeep a connection you can develop with“mans best friend”.But a dogs life is much shorter than humans,about 12 to 15 years long,which means every dog owner has to go through the h
8、eartbreaking moment when their loving pet passes away.Why not make a clone of that dog then?This is the solution offered by a South Korean company,Sooam Biotech Research Foundation.The company has already successfully cloned at least 400 dogs,mostly for US customers,ever since it pioneered the techn
9、ique in 2005.Now,Sooam Biotech has introduced its business toUKdog owners as well,offering them dogs that look just like their lost ones.To clone a dog,researchers first need to take a skin cell from a living dog or one that has just died.Meanwhile,another dog is selected to supply an egg.Researcher
10、s then replace the DNA in the egg with that from the skin cell and implant the egg into the womb(子宫)of a female dog.The egg grows into a puppy over the following two months.The whole process takes less than a day,but it comes at a shockingly high price around63,000.But if you cant afford it now,you
11、can also save the cell in a laboratory andaccess it at a later date.However,magical as cloning might sound,there is no guarantee that the cloned dog will be a perfect copy of the original one.Just like identical twins of humans,they share the exactly same DNA but there will still be small difference
12、s between them.“The spots on a Dalmatian(斑点狗)clone will be different,for example”Insung Hwang,head of Sooam Biotech,told The Guardian.Dog owners will also have to accept the fact that personality is not“cloneable”.Apart from genes,personality is also determined by upbringing and environment,which ar
13、e both random elements that cloning technologies simply cannot overcome,Professor Tom Kirkwood atNewcastle University,UK,told The Telegraph.Perhaps bringing our dogs back by cloning is not the best way to remember them after all.Kirkwood,a dog owner himself,pointed out,“An important aspect of our re
14、lationship with them is coming to terms with the pain of letting go.”4.What service does Sooam Biotech Research Foundation offer?A.Making copies of pet dogs.B.Giving pet dogs identical twins C.Helping dogs give birth to more puppies.D.Helping dog owners love their dogs more.5.Which order is correct
15、in the dog cloning process?a.An egg is taken from another dog.b.A skin cell is taken from the pet dog.c.The egg grows into a puppy in two months.d.The egg is placed in the womb of a female dog.e.The DNA in the egg is replaced by the DNA from the skin cell.A.adbec.B.aebdc C.badec.D.baedc.6.What can w
16、e learn about dog cloning from the passage?A.It has not been put into practice until recently.B.It is very popular among US andUKpet owners.C.It might not give the owners an exactlysame dog.D.It is very expensive and usually takes half a year to complete.7.What doesKirkwoodthink of dog cloning?A.He
17、disagrees with it.B.He supports it.C.He is curious about it.D.He thinks it unbelievable.C Trees are“social creature”that communicate with each other in cooperative ways that hold lessons for humans,too,ecologist Suzanne Simard says.Simard grew up in Canadian forests as a child of loggers before beco
18、ming an ecologist.Shes now a professor of forest ecology at theUniversityofBritish Columbia.Trees are linked to neighboring trees by a network of fungi below the surface of the earth that resembles the nervous networks in the brain,she explains.In one study,Simard watched as a Douglas fir tree that
19、had been injured by insects appeared to send chemical warning signals to a pine nearby.The pine tree then produced defense enzymes to protect against the insect.“This was a breakthrough,”Simard says.The trees were sharing“information that actually is important to the health of the whole forest.”In a
20、ddition to warning each other of danger,Simard says that trees have been known to share nutrients at critical times to keep each other healthy.She says the trees in a forest are often linked to each other via an older tree she calls a“mother”or“hub”tree.“In connecting with all the trees of different
21、 ages,the mother trees can actually ease the growth of these young trees,”she says.“The young trees will link into the network of the old trees and benefit from that huge resource capacity.And the old trees would also pass a little bit of carbon and nutrients and water to the young trees,at crucial
22、times in their lives,that actually help them survive.”The study of trees took on a new resonance for Simard when she suffered from breast cancer.During her treatment,she learned that one of the medicines she relied on was actually obtained from what some trees produce for their own mutual defense.Sh
23、e explains her research on cooperation in the forest,and shares her personal story in the new bookFinding the Mother Tree:Discovering the Wisdom of theForest.8.How could a Douglas fir tree send chemical warning signals to a pine nearby?A.By an underground network of fungi.B.By the nervous networks i
24、n the brain.C.By making cooperation with each other.D.By holding lessons to it as human beings.9.According to Simard,what was a breakthrough?A.Simard was-brought up in Canadian forests.B.She became a professor of forest ecology.C.The pine tree produced defense enzymes.D.Vital information was shared
25、among trees.10.What helped Simard understand trees further?A.Her rich knowledge of trees.B.Her childhood in the forest.C.Her medicine gained from trees.D.Her research on cooperation.11.In Simards book we may discover the wisdom of the forest except .A.communicating cooperatively B.warning each other
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